Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6037516 | Method for removal of oxygenate impurities from organic chemical streams | Timothy L. Lambert, William K. Culbreth, III | 2000-03-14 |
| 5958192 | Purification of propylene oxide using ethylene glycol monomethyl ether as an extractive distillation agent | — | 1999-09-28 |
| 4727143 | Method for the selective manufacture of N,N'-dimethyl piperazine | Steven H. Vanderpool | 1988-02-23 |